Results 21 to 30 of about 4,958 (162)

Abundance, Distribution, and Diversity of Freshwater Snail and Prevalences of Their Infection by Cercaria of Fasciola gigantica and Schistosoma spp at Mayo‐Vreck River, Far North Region of Cameroon

Journal of Tropical Medicine, Volume 2023, Issue 1, 2023., 2023
Malacological and parasitological studies were conducted from April 2020 to March 2021 to determine the abundance and distribution of molluscs and cercariae of Schistosoma spp and Fasciola gigantica. Collected molluscs are exposed to strong light to induce cercarial release. Mollusc densities were higher at station 1 (Gamak) than in station 8 (Patakai),
Augustin Siama, Serges Eteme Enama, Justin Kalmobe, Samuel Abah, Angele Foutchou, Alexandre Michel Njan Nloga, Pedro P. Chieffi   +6 more
wiley   +1 more source

Early land plants: Plentiful but neglected nutritional resources for herbivores?

Ecology and Evolution, Volume 12, Issue 12, December 2022., 2022
In this paper, we explore the unknown reason(s) why herbivores rarely seem to attack early land plants like mosses and ferns. Our study, in which we looked at the performance of an arthropod and a gastropod on 15 species of such plants, yields surprising results that disqualify some of the common notions about early land plants.
Audrey Duhin, Ricardo A. R. Machado, Ted C. J. Turlings, Gregory Röder   +3 more
wiley   +1 more source

Extinction risk is linked to lifestyle in freshwater gastropods

Diversity and Distributions, Volume 27, Issue 12, Page 2357-2368, December 2021., 2021
Abstract Aim Freshwater ecosystems and their biota are severely endangered by global change today, and predicted extinction levels are skyrocketing for many taxa. Most studies have focused on entire clades, while approaches testing for selective extinction risk with respect to ecological traits are rare. As studies are typically based on modern faunas,
Thomas A. Neubauer, Elisavet Georgopoulou, Chris Burridge   +2 more
wiley   +1 more source

Seasonal turnover in community composition of stream‐associated macroinvertebrates inferred from freshwater environmental DNA metabarcoding

Environmental DNA, Volume 3, Issue 4, Page 861-876, July 2021., 2021
Macroinvertebrate communities are crucial for biodiversity monitoring and assessment of ecological status in stream ecosystems. Here, we use environmental DNA metabarcoding of filtered water samples collected in both spring and autumn from five streams in Denmark to address seasonal turnover in community composition of stream macroinvertebrates.
Mads Reinholdt Jensen, Eva Egelyng Sigsgaard, Sune Agersnap, Jes Jessen Rasmussen, Annette Baattrup‐Pedersen, Peter Wiberg‐Larsen, Philip Francis Thomsen   +6 more
wiley   +1 more source

Trophic structure of a pond community dominated by an invasive alien species: Insights from stomach content and stable isotope analyses

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 31, Issue 4, Page 948-963, April 2021., 2021
Abstract Invaders affect native species across multiple trophic levels, influencing the structure and stability of freshwater communities. Based on the ‘trophic position hypothesis’, invaders at the top of the food web are more harmful to native species via direct and indirect effects than trophically analogous native predators are. However, introduced
Alessandra Maria Bissattini, Phillip J. Haubrock, Vincenzo Buono, Paride Balzani, Nicolò Borgianni, Luca Stellati, Alberto Francesco Inghilesi, Lorenzo Tancioni, Marco Martinoli, Elena Tricarico, Leonardo Vignoli   +10 more
wiley   +1 more source

Comparing the efficacy of morphologic and DNA-based taxonomy in the freshwater gastropod genus Radix (Basommatophora, Pulmonata) [PDF]

, 2006
Background Reliable taxonomic identification at the species level is the basis for many biological disciplines. In order to distinguish species, it is necessary that taxonomic characters allow for the separation of individuals into recognisable ...
Mathilde Cordellier, Pfenninger Markus, Markus Pfenninger, Pfenninger, Markus, Cordellier Mathilde, Cordellier, Mathilde, Streit, Bruno, Bruno Streit, Streit Bruno   +8 more
core   +1 more source

Actualización del conocimiento de la distribución de la Superfamilia Vitrinoidea Fitzinger, 1833 (Gastropoda, Pulmonata) en el oeste de Galicia

Graellsia, 1995
En este trabajo se realiza un estudio faunístico de las especies de la Superfamilia Vitrinoidea Fitzinger, 1833, encontradas en el oeste de Galicia (provincias de A Coruña y Pontevedra).
P. Ondina, J. Hermida, T. Rodríguez
doaj   +1 more source

Revision of Dadagulella gen. nov., the “Gulella radius group” (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies [PDF]

, 2013
The genus Dadagulella gen. nov. is described to include 16 species of small, dentate, ovateacuminate Afrotropical snails. An identification key is provided and biogeography, anatomy and systematics are discussed. The type species is the Kenyan D. radius (
Tattersfield, Peter, Ben Rowson, Peter Tattersfield, Rowson, Ben   +3 more
core   +1 more source

The zoobenthos of the river Tzraudon, the Terek river basin

RUDN Journal of Ecology and Life Safety, 2020
The paper provides information about the fauna of amphibious insects that live in the river Tsraudon, discusses the ecology of species, the dynamics of species diversity.
Iya E. Dzhioeva, Susanna K. Cherchesova, Oleg A. Novatorov, Zarina K. Tsagaeva   +3 more
doaj   +1 more source

Short read Illumina data for the de novo assembly of a non-model snail species transcriptome (Radix balthica, Basommatophora, Pulmonata), and a comparison of assembler performance [PDF]

, 2011
Background: Until recently, read lengths on the Solexa/Illumina system were too short to reliably assemble transcriptomes without a reference sequence, especially for non-model organisms.
Wheat, Christopher W., Markus Pfenninger, Rotter, Björn, Pfenninger, Markus, Björn Rotter, Christopher W Wheat, Nicolas Krezdorn, Feldmeyer, Barbara, Krezdorn, Nicolas, Rotter, Bjoern, Barbara Feldmeyer   +10 more
core   +2 more sources